Gang-plow.



H. C. CLAY.

GANG PLOW.

` APPLICATION FILED APR. 8, 1910. l 976,72 1 Paxntea Nov. 22, 1910.

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mnh@@mumnimm I l l UNITED STATESPATENT OFFICE'.

HARRY c. CLAY, or COLUMBUS, INDIANA, Assieivoaro REEVES a COMPANY," or

coLUMBUs, INDIANA, yA.coniomiirroiior INDIANA. f

GANG-ILow.

Speeieationif Letters Patent. Patented Nov. 22, 1910i Apiincazion med April a, i910. y serial No. spinse.

To all jwhom t may" concern:

Be it known that l, HARRY C. CLAY, a citizen of the United lStates, residing at Columbus,-in the county of Bartholomew and State of Indiana, have invented a new and use in gang plows Where several plow units, of two furrowers each are flexiblyconnectedl to a main draft'frame.

The accompanying drawings illustrate my invention. i l i Figure 1 is a side elevation; Fig. 2 a fragmentary detail of one of the adjusting nuts and associated parts; Fig. 3 a section ,on line 8 3 of Fig'. 2; Fig. 4- a fragmentary plan, andFig. 5 a sectional detail of the connection between frame 21 and the plow unit.

In the drawings, 1 0 and 11 lindicate a pair of' plow beams which are rigidly connected together; to form a unit.v Connecting the forward ends ofthe two beams 10 and 11 is a bracket 12 having a pair of depending portions 13 to the lower end of each of which is pivoted, at 13, ailink 14- having a forf wardly presented notch at its forward end adapted to receive a cross-pin 16. A pin 17 extends across between each pair of links at an intermediate point in their length and pivoted on .this pin is a clamping finger 18 which has a downwar/lly presented finger also adapted to engage pin 16. 'A spring 19 on a bolt 19 serves toclamp thelinks 141 and finger 18 upon the pin 16 with a yielding force, in a well-known manner, so that too great a resistance offered to the plow will'cause the spring 19 to yield and: the

plow unit to be thusdisconnected'` from the draft frame.

The pins 16 are cairiedat an intermediate point in the length of a draft frame 2,1 which is pivotally connected on a horizontal pivot 22 to the fitting 23 which is mounted upon a vertical pivot 211, the said vertical pivot being connected to the main draft frame 25. At its rear end the draft frame 21 is provided with a supporting wheel 26.

The depth of cut of the plow shares 31 is determined by a gage wheel 32 which is carried at the rear-end ofl a frame pivoted at its forward end at 34 to bracket 12. Different positions of adjustment of the wheel V32 and dierent conditions of soil require varying positionsof the beams l0and 11 relative tothe surface of the ground but any position of adjustment must be rigidly main- `tained-during plowing operation. For that purpose I pivot upon each pin 17. the lower end of a threaded stem or tie rod35 the threaded upper end of .which is threaded through an adjusting nut 36. Nut 36 is provided with a'ball 37 which is seated in a socket 38 formed in the inner face of the adjacentl` plow beam 10 or 11, and is held in place by a socketed clamping strap 39,` the arrangement being such that a limited forward and backward swing of the nut in its clamp may be had to allow'fifor the variation due to an adjustment of the nuten its stein. f

By lindependently adjusting the two nuts 36 the plow unitmay be cantedlaterally to some extent in order to compensate for any. slight difference ofv ldraft of the Itwo plow shares. An adjustment of both the nuts in the same direction upon their stems causes a swinging of the plow' unit upon the pivots 13 atthe rear ends of links14 thus produc# Ving the same effect as is produced by 'shiftl ing the point of draft attachment to a plowl beam by an ordinary vertically adjustable clevis. I f A f i' By this arrangement it is possible to Very quickly and easily adjust the draft connec` tion between the plow -unit and the draft frame 2i', even during plowingopeiation, so

as to obtainfa perfect draft upon the plows.

II claim as my invention z- 1. The combination, with a plow of adraft frame, a link pivotally connected at its es.,k

rear end to the plow beam and connected at its forward end to the draft frame., a threaded tie-rod and a nut, said tie rod and nut. forming a connection between the forward.

end of the plow beam and the link forward of its pivotal connection with the plow beam, for the purpose set forth.

2. The combination, withl a plow of. a l draft frame, a link pivotally connected at its rear end to the plow beam and connected at' its forward end to the draft frame, athreaded tie rod connected to said link at an intermediate point, a ball-sha ed nut threaded' i upon said tie rod, and a soc 'et connection be-A tween said nut and'the'plowbeargi;

y ,n ut forming a connection between ther forward end `of its plow beam and its link for Ward of its pivotal connection with the plow .end to a plow' beam and connected at its forward end'to-the draft frame, a threaded tie prising two plows, of a draft frame, two` 8. The combination, Y'with a 10W unit end to the draft frame, a threaded tie rod 15 comprising two plows, of a draft frame, two connected to .each link at an intermediate links each piyotally connected at its rear point, a ball-shaped'nut threaded upon said tie rod, and a socket connection between said nut and a plow beam.

Ip witness whereof, I, have hereunto se@ 20 my hand and seal at Columbus, Indiana, this second day of April,- A. D. one thousand ninehundred and ten.

HARRY o. CLAY. [1.. 5.]

rod and` a nut for each link, said tie rod and beam, for the purpose set forth.

' Ll. .The combination, with a plow .unit comp Witnesses:

JOHN H. BAGHTEL, PERRY KING.

inks 'each pvotally connected at its rear end toa plowbeam and connectedV at its forward 

